Valve diaphragm



FIG. 1 is a top view of our new design;

FIG. 2 is a bottom view of the design of FIG. 1;

FIG. 3 is a top perspective view of the design of FIG. 1;

FIG. 4 is a bottom perspective view of the design of FIG. 1;

FIG. 5 is an elevation view of the design of FIG. 1;

FIG. 6 is a top view of the design of FIG. 1 showing section line A—A; and,

FIG. 7 is a section view of the design of FIG. 1 taken along line A—A of FIG. 6.

The broken lines in the figures are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a valve diaphragm, as shown and described. 